I am trying to profile a Server application COM+ component.
The component "Business.Tier" has been written in C# and all references in this project are also written in C#.
When I take the snapshot I receive the following message dialog:

"The COM+ application Business.Tier has not loaded the .NET Framework. Please check that Business.Tier is a .NET application or one that hosts the Common Language Runtime. Please note that the COM+ application will not be loaded until the client application accesses it."

If the COM+ application has been loaded and there is a client using it and it is loading the .net runtime (managed code), then you should see snapshot results. You may want to check the event logs for entries from your application, as it could have crashed. One trick you may find useful is that the ANTS Profiler Service is actually trying to start the COM+ application. If you need to run the application as a specific (domain) user, than you will want to change the logon for the service to this account, otherwise the defaut is to run as LocalSystem.

i saw events log:
this is the description:
Unable to start profiler - exception details System.ComponentModel.Win32Exception: The system cannot find the file specified
at System.Diagnostics.Process.StartWithShellExecuteEx(ProcessStartInfo startInfo)
at System.Diagnostics.Process.Start()
at ᐿ.ᐇ()
at ᐿ.ᐁ()
at ᐃ.ᐄ(IAsyncResult )

Can you please verify that the path to executable (the executable that you have specified as a test harness) is correct? If it's not that, ANTS Profiler must not be able to find dllhost.exe in your system file path.

I found dllhost.exe in C:\\WINNT\\system32 folder so I copied it to C:\\WINNT\\ folder and tried again but now I got the message:

The COM+ application Business.Tier has not loaded the .NET Framework. Please check that Business.Tier is a .NET application or one that hosts the Common Language Runtime. Please note that the COM+ application will not be loaded until the client application accesses it.

Was there ever a resolution to this issue? I am trying to use ANTS 2.71 under Windows 7 and am getting the same error message. I also am missing the dllhost.exe file in the system root folder, and get no change in behavious by copying it.